參數(shù)資料
型號(hào): W78E378
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: MONITOR MICROCONTROLLER
中文描述: 8-BIT, FLASH, 10 MHz, MICROCONTROLLER, PDIP32
封裝: 0.600 INCH, PLASTIC, DIP-32
文件頁(yè)數(shù): 29/38頁(yè)
文件大?。?/td> 396K
代理商: W78E378
Preliminary W78E378/W78C378/W78C374
Publication Release Date: December 1999
- 29 - Revision A1
2. Pulse width selectable.
For Fosc = 10 MHz:
HCWS = 0
HCWS = 1
Pulse Width
500
600 nS
900
1000 nS
Safe Operation Area (SOA) Interrupt
Upper boundary frequency = F
OSC
/ [8
×
SOARH]
Lower boundary frequency = F
OSC
/ [8
×
(SOARL + 1)]
Function description:
If the condition, H
FREQ
lower than the lower boundary freq.
or higher than the upper boundary freq.,
happens twice continuously, the SOAINT will be activated.
If the HIN is stopped for a certain period, the SOAINT will also be generated.
The no Hsync response time is 512/F
OSC
. (e.x., 51.2us for 10 MHz)
If SOAHDIS = 1, then no upper boundary frequency.
Half Hsync Output
When ENHFO (bit 0 of CTRL3) is set, P4.7 (HFO) will output the same or half frequency from P4.0
(HFI). The divide-by-two operation is done at the falling edge of HFI signal when HFO_HALF (bit 3 of
CTRL3) is set. The polarity of HFO is specified by HF_POL (bit 2 of CTRL3).
HFI
HFO
(HFO_HALF=0)
(HF_POL=1)
HFO
(HFO_HALF=0)
(HF_POL=0)
HFO
(HFO_HALF=1)
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